package jdbc;
/*
* 删除用户操作，根据用户输入的用户名删除该用户
* 要求:使用预编译SQL
* */

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class Test2 {
    public static void main(String[] args) {
        UserInfo userInfo = InputUtil.getInputObject(new UserInfo(),"欢迎删除","删除");
        try (
                Connection connection = DBUtil.getConnection();
        ){
            String sql = "DELETE FROM userinfo WHERE username=?";
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1,userInfo.getUsername());
            int num = ps.executeUpdate(sql);
            if(num>0){
                System.out.println("删除成功");
            }else {
                System.out.println("删除失败");
            }

        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
